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<title>Using as: SH64 Directives</title>

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<a name="SH64-Directives"></a>
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Next: <a href="SH64-Opcodes.html#SH64-Opcodes" accesskey="n" rel="next">SH64 Opcodes</a>, Previous: <a href="SH64-Syntax.html#SH64-Syntax" accesskey="p" rel="prev">SH64 Syntax</a>, Up: <a href="SH64_002dDependent.html#SH64_002dDependent" accesskey="u" rel="up">SH64-Dependent</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="AS-Index.html#AS-Index" title="Index" rel="index">Index</a>]</p>
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<a name="SH64-Machine-Directives"></a>
<h4 class="subsection">9.42.3 SH64 Machine Directives</h4>

<p>In addition to the SH directives, the SH64 provides the following
directives:
</p>
<a name="index-SH64-machine-directives"></a>
<a name="index-machine-directives_002c-SH64"></a>

<dl compact="compact">
<dt><code>.mode [shmedia|shcompact]</code></dt>
<dt><code>.isa [shmedia|shcompact]</code></dt>
<dd><p>Specify the ISA for the following instructions (the two directives are
equivalent).  Note that programs such as <code>objdump</code> rely on symbolic
labels to determine when such mode switches occur (by checking the least
significant bit of the label&rsquo;s address), so such mode/isa changes should
always be followed by a label (in practice, this is true anyway).  Note
that you cannot use these directives if you didn&rsquo;t specify an ISA on the
command line.
</p>
</dd>
<dt><code>.abi [32|64]</code></dt>
<dd><p>Specify the ABI for the following instructions.  Note that you cannot use
this directive unless you specified an ABI on the command line, and the
ABIs specified must match.
</p>
</dd>
</dl>


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